The Battle of Fornost was the decisive battle between the forces of Angmar, under the Witch-king, and of Eärnur, the Crown Prince of Gondor, in the year TA 1975 that ended the evil northern Kingdom of Angmar.

The battle itself did not take place in the city of Fornost, but on the plains to the west of the city, near Lake Evendim. The armies of Angmar hurried west to meet the assault, and seeing this, the cavalry of Gondor rode north into the Hills of Evendim to wait in ambush. As the main part of the army of Gondor met the enemy in battle, the Gondor cavalry set out from the hills to strike the rear of the army of Angmar. This served as the turning point in the battle, and allowed the combined armies of the west to gain the advantage. Realizing that his forces were all but completely destroyed, the Witch-king of Angmar fled eastward. As he fled, an army led by Glorfindel came up out of the south and blocked his escape, destroying what was left of his crumbling army; the Witch-king himself was able to escape during the night and fled southward. Though the battle itself had been lost and Angmar utterly destroyed, Sauron was extremely pleased with the Witch-King's work, for the destruction of the northern kingdoms of the Dúnedain was a victory for the Dark Powers which far exceeded the loss of the Witch-King's realm.[1][2][3]

The battle is portrayed in The Battle for Middle-Earth II, Rise of the Witch-King, where it is the epilogue mission to the game story. The battle has some notable differences, for it takes place in the heart of Angmar itself. Elrond himself is also present as an additional hero, along with Glorfindel and Earnur. The player must navigate through the various ambushes waiting in line before confronting the Witch-King. Killing him automatically completes the mission.